As i posted before on how to install the Windows Medpia Player 11 beta.
TheDA pointed out a better way to install which doesnt cause problems later. so here it is.. (you need to have winRAR)
1. Download the Wmp11.
2. Extract files in to folder.
3. Download file CRACK.rar and extract it.
4. Copy legitcheckcontrol.dll to windows/system32
5. Copy legitlib.dll to the folder where you extracted the Wmp11 files overwriting the original file.
6. Run the setup file.